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Finding the Fourth Proportional to 7,491.90, 11,233.80 and 3,104.40

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Solution

The fourth proportional to 7,491.90, 11,233.80 and 3,104.40 is: 4,654.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,491.90 : 11,233.80 = 3,104.40 : x
  2. Step 2: Convert to fraction form
    7,491.90/11,233.80 = 3,104.40/x
  3. Step 3: Cross multiply
    7,491.90x = 11,233.80 × 3,104.40
  4. Step 4: Simplify right side
    7,491.90x = 34,874,208.72
  5. Step 5: Solve for x
    x = 34,874,208.72/7,491.90
  6. Step 6: Final answer
    x = 4,654.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.